Semiprimes which are products of two primes each with half the number of digits, and which when split in the middle gives two primes; no leading zeros.
A243749
Semiprimes which are products of two primes each with half the number of digits, and which when split in the middle gives two primes; no leading zeros.
Terms
- a(0) =25a(1) =35a(2) =1147a(3) =1159a(4) =1189a(5) =1343a(6) =1711a(7) =1943a(8) =1961a(9) =2911a(10) =2923a(11) =3713a(12) =4171a(13) =4183a(14) =4189a(15) =4331a(16) =4717a(17) =5329a(18) =5917a(19) =101263a(20) =101461a(21) =101617a(22) =101659a(23) =101887a(24) =101911a(25) =101971a(26) =103127a(27) =103223a(28) =103277a(29) =103283
External references
- oeis: A243749